Condenser.



PATENTBD SEPT. 1', 190s.

w. B. TAYLOR. CONDENSER.' APPLICATION FILED JAN. 6, 1907.

2 sums-SHEET 2f INVENTDR WILLI/Kn BTAHLUR.

iwnucasc:

UNITED STATES YPATENT OFFICE.

WILLIAM n. TAYLOR, OF LYNN, MASSACHUSETTS, AssIGNoa TOGENEEAL ELECTRICCOMPANY, A CORPORATION OF NEW YORK.

CONDE NSER.

To all whom iii-may concern.' Be it known that I, WILLIAM B..TAYLOR, acitizen of lthe United States, residing at Lynn, in thecounty `of Essexand State of lt* assachusetts, have invented certain 'new and usefulImprovements in Condensers, of which the followin is a specification.

My invention reigatcs to improvements in the construction andarrangement of static electric condensers.

In high voltage co'ndensers difficulty has been experienced in obtainingconsiderable capacity' without making thein inconvenin connection ientlylarge, in order to guard against breakingy down of the dielectricmaterial between the active plates. For this reason also the connectionand effective insulation of theleads has been a trtiuhlesome matter. Bymy invention these dillculties are Overcome and condenscrs for highvoltage Iwork and having large capacities may readilyltbfbiriiltin.cheap' tric being omitted.; Fig. 2 is a side elevation ofthe condenser with the casing shown in cross-section; Fig. 3 shows on anenlarged scale a fragment of one of the -condenser units; and Fig. 4 isla side elevation of one of the condenser units on a similar scale.

I prefer to build up eondensers of a plu'- rality of similarself-contained units whereby,`

by assembling more or less of these units, condensers o ,different sizesmay conyeniently be produced. Each unit is made up of a plurality ofactive plates separated from each other and surrounded b soliddielectric' material; ea'ch unitbeing tierefore a complete condenser. I

The condenser 'sh-own.. in the rawingl is lgnadla Aup'offfoiu of these'unitsl, 2,3 an 4.

consists. dffaipaix; of electricallyconnec se arateglf'plates '5 AandanY interosed These plates are preferably orme, ?throunded corners, asshown in Specification o! lLetters Patent.

Application illed January 5, 1907. Serial No. 350,905.

.gether wit Patented sept-[1, 190e.

dotted linesin Fig. 2 and with ears 7 and 8 projecting from one sidethereof. The plates are so arranged. that the ears 7 and 8, on theplates 5 and` 6, respectivelyare arranged at opposite sides of the unit.The ears 7 of each unit are bent. laterally toward each other so thatwhen the are connected together they serve to hol the plates 5 spacedapart. The ears 7 of the several units are connected together and to `aterminal 9 bymeans of a lead 9'", andthe ears 8 are connected togetherand to aterxninal 10 by means of a lead 10. plates are cnt away as at 1land 12, respectively, so that thc lead connected with each plate or setof plates is far removed from the the plate or plates of o )positepolarity.v 'lhe extent to which the p :ttes-are cut away of coursedepends upon the voltage and capac ity. -By this arrangement theconnection of the leads is a simple matter, since they are attached tothe plates at points so far removed from the opposing plates that thereis little danger of short-circuiting throu l1 breaking down of thedielectric between t c leads and the plates of opposite polarity.Furthermore, this result is produced without causing the planes oftheedges of the plates of opposite gle oint,c;

Tlie complete structure of one of the units is shown in Fi .3` and 4.Thus, between the plate 6 an( each of the 'plates 5 there is arrangedasolid dielectric material laminated parallel tocthe' lates. Thisdielectric body may convenient y be made up of a number of sheets 13 ofpress-board or similar nonconductin material. These sheets, to-

outside of the plates '5, are cut somew at larger than the plates onlythe ears 7 and 8 projecting beyond t ein. `Interposed between the sheets13 are a number of dead conducting plates 15 and 165 these plates beinglapping portions-of the active plates so as to polarity to cross exceptat a sineut somewhat larger than the over The corners ofthe othersheets, Allt, 14, arran ed reduce to a minimum the edge ,densities ofthe active plates and'reduce the strain in the non-conducting' soliddielectric. It is not necessary that o`ne of these dead conductingplatesbe placed between 'each two consecutive non-conductin plates unless thesolid dielectric is divider? into only afew layers. It is only necessarto provlde va few dead conducting plates between adjacent active plates,as', for example, a pair ofi-the lates.-

'and Ianother pair of the somewhatl arger plates 16. I have found thatthebest r-s sults are obtained by building u the lamihated body of alarge number o very thin slieets, in which 'case 'the dead conducting`plates are preferably .distributed symmetrically throughout the mass.The dead conducting plates may conveniently be made of tinfoil 'securedto the adjacent non-conducting lates at their upper corners by means ofshel ac.

The several units are assembled in a frame 17 of wood or othernon-conducting material so as to leave spaces between a'djacent units,and the frame is then placed in 'aslieet metal casing 18. The casing maybe lledwith oil (the surface of' which is indicated by the dotted line18.a in Fig. 1 which,

extending `between the several units and.

abone and 4beneath them not only serves as an additional dielectric bodybut also acts to carry away heat from-the surface of the soliddielectric material. `The frame ma l conveniently be made o frectangular boar s 19, 19, .having a connecting member .20

across the top and a bar 21 joiningfthe lower ends.r End members havingribsr22 and 23 are secured to the side members b means of'tenons 24 and25 mortised into t e'edges .of the side memberea The condenser units areplaced in the frame, one unit betweeneach two consecutiveibs. The lowered es ofl the units rest u .pon the member 21 and t e units are spacedapart and kept out of contact with eachother by means of the ribs 22 lVand 23. A cleat 25 may be 'secured in the .frame above the severalunits after they are assembled, in'order to hold them againstdisplacement.' .While the oil serves to cool the soliddielectriq I'havefound that the heat- -lng is largelydperident upon the extent to .whichthe amination is carried and that aver-heating is best avoided by makingthe.

laminationsof the solid dielectric very thin even when an oil bathis emloyed.

While -I have described-in etail onl a prel erred form of my invention,I do no desire' to beilimited .to this particular form only since, 1nits. broader aspects my invention covers lalso other xnodiied forms, aswill be evident from the definitions inthe appended claims. 'lhus,forexample, each unit may consist of any desired number of active platesinstead of only three.

What I claimas new-and desire to secure by Letters APatent f the UnitedStates, is;

1L In acondenser, active plates ot oppo- 1 site polarity'andterminalrejections or ears "on said plates,ieach of sai plates lbeingcut away at points adjacent a terminal of oppof site polarity.4 c

2. In a condenser, a plurality of rectangullar plates of oppositepolarity and terminals on said plates, the terminals of oppositepolarity beingarrangedon opposite sides of voneothe axes of the plates,and each of the platshaving a, corner cut away diagonally adjacent aterminal of opposite polarity.

3. In a condenser, a plurality of rectangular plates of oppositepolarity and terminals' on said plates, the terminals of opposite pol'larity being arranged on opposite sides of one of the axes of theplates and each of said plates having its corners 'cut in a roundedfashion and the corner adjacent a terminal of 'opposite polarity cutaway diagonally.

4. A condenser unit consisting of a pair of electrically-connectedplates, an interposed plate of opposite polarity, -a laminated body ofdielectric material' containing-dead conducting layers arranged betweensaid latter plate and each of the other` plates, and terminalson saidactive plates, each of said active plates being' cut away diagonally atpoints adjacent a terminal of opposite po-I.

rity. l

5. A condenser unit consisting of a pair of electrically-connectedsubstantiallyA rectan,

gularplates, a similarly 'shaped interposed plate, laminated bodies ofdielectric mm terial separating said plates from eachother, said bodiesextending beyond the edges of said plates, andterminals consisting ofears on said plates extending beyond the'said bodies, each of saidplates having its comer cut away diagonally adjacent the ear on' theplate of op ositepolarity.l

6. A con enser consisting of a plurality of active plates of asubstantially rectangular shape with a terminal at one corner, van ad.jacent corner cut .diagonally away, the other two corners being cut in arsubstantially lrounded form, alternatefplates being assembled withtheir terminals on Aopposite sides of one ofthe axes of the plates, the'platesbeing assembled with the planes'of their edges substantially atrightangles to surfaces of the plates, insulated conducting platesplaced between the active plates and extendlng beyond their edges and ofgreater area as they are spaced further from the active plates anddielectric material insulating the severalplates, In witness whereof, Ihave hereunto set my hand this third day of January, 1,906. r WILLIAM B.TAYLOR. .Witnessest JOHN A. McMANUsLJr.,

HENRY O. WESTENDARP.

